2023-91 Ordinance Amending City Code Chapter 26 Heating, Air Conditioning and Refrigeration Contractors

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Chapter 67 — Buildina Code International Building Code This code applies to all buildings except detached one-and two-family dwellings and townhouses up to three stories. New in the 2021 IBC: • Puzzle rooms(escape rooms)are now defined and regulated as special amusement areas, requiring compliance with Section 411 and special means of egress requirements. • For the purposes of determining the allowable number of control areas in a building,each portion separated by one or more fire walls is now considered as a separate building. • In Group E occupancies,enhanced classroom acoustics in compliance with ICC A117.1 are to be provided in all classrooms having of volume of 20,000 cubic feet or less. • The requirements for metal composite materials and systems(MGM)installed on the exterior walls of Types I, ll, 111 and IV construction were simplified and sprinkler allowances were deleted • The use of intermodal shipping containers as buildings is now specifically addressed through provisions intended to supplement existing applicable IBC requirements. • Automatic sprinkler protection is now required in Group S-2 open parking garages where any fire area exceeds 48,000 square feet. • The 2017 edition of ICC A117.1 was adopted. • Parapets of a minimum height are now required for aggregate-surfaced roofs to prevent blow-off. • Mixed occupancy buildings with assembly spaces are placed in Risk Category III when the total public assembly occupant load is greater than 2500 people. • The 2021 IBC snow map is updated to match ASCE 7-16 snow maps by adding a reference to ASCE 7 snow tables in states with large case study areas. • Secondary rain loads are updated to be consistent with ASCE 7. • Special inspection requirements were added to address the anchorage and connection of mass timber structural elements. • Installation of firestop,fire-resistant joint systems and perimeter fire barrier systems in residential- use buildings now requires special inspection in Group R fire areas having an occupant load exceeding 250 people. • Frost protection for egress doors was added to the foundation requirements. • ACI standards ACI 117 and ITG 7 were added by reference to provide acceptable tolerances for concrete construction. • Three new types of construction (Types IV-A, IV-B, and IV-C)allow mass timber buildings of taller heights, more stories above grade, and greater allowable areas compared to existing provisions for heavy timber buildings. New in the 2018 IBC: • Accessory storage spaces of any size are now permitted to be classified as part of the occupancy to which they are accessory. • New code sections have been introduced addressing medical gas systems and higher education laboratories. • Use of fire walls to create separate buildings is now limited to only the determination of permissible types of construction based on allowable building area and height. • Where an elevator hoistway door opens into a fire-resistance-rated corridor,the opening must be protected in a manner to address smoke intrusion into the hoistway. • The occupant load factor for business uses has been revised to one occupant per 150 square feet. • Live loads on decks and balconies increase the deck live load to one and one-half times the live load of the area served. • The minimum lateral load that fire walls are required to resist is five pounds per square foot. • Wind speed maps updated, including maps for the state of Hawaii.Terminology describing wind speeds has changed again with ultimate design wind speeds now called basic design wind speeds.